/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.gravitino.cli.commands;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.apache.gravitino.Audit;
import org.apache.gravitino.authorization.Role;
import org.apache.gravitino.authorization.SecurableObject;
import org.apache.gravitino.cli.CommandContext;
import org.apache.gravitino.cli.ErrorMessages;
import org.apache.gravitino.client.GravitinoClient;
import org.apache.gravitino.exceptions.NoSuchMetalakeException;

/* Lists all roles in a metalake. */
public class ListRoles extends Command {

  protected String metalake;

  /**
   * Lists all groups in a metalake.
   *
   * @param context The command context.
   * @param metalake The name of the metalake.
   */
  public ListRoles(CommandContext context, String metalake) {
    super(context);
    this.metalake = metalake;
  }

  /** Lists all roles in a metalake. */
  @Override
  public void handle() {
    String[] roles = new String[0];
    try {
      GravitinoClient client = buildClient(metalake);
      roles = client.listRoleNames();
    } catch (NoSuchMetalakeException err) {
      exitWithError(ErrorMessages.UNKNOWN_METALAKE);
    } catch (Exception exp) {
      exitWithError(exp.getMessage());
    }
    if (roles.length == 0) {
      printInformation("No roles exist.");
    } else {
      Role[] roleObjects = Arrays.stream(roles).map(this::getRole).toArray(Role[]::new);
      printResults(roleObjects);
    }
  }

  private Role getRole(String name) {
    return new Role() {
      @Override
      public String name() {
        return name;
      }

      @Override
      public Map<String, String> properties() {
        return null;
      }

      @Override
      public List<SecurableObject> securableObjects() {
        return null;
      }

      @Override
      public Audit auditInfo() {
        return null;
      }
    };
  }
}
